Drifting of Continents and Plate Tectonics — Concept Maps
ICSE · Class 11 · Geography
4 concept maps of Drifting of Continents and Plate Tectonics for ICSE Class 11 Geography, each also written out as a text outline.
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Logic flow showing how the jig-saw fit observation led to the conclusion that continents were once connected and later drifted apart.
The map in words
- Observe Coastlines
- Do they fit together?
- Yes: Evidence of Past Connection
- Continents Once Joined
- Continents Drifted Apart
- Continents Once Joined
- No: Random Distribution
- No Connection Theory
- Yes: Evidence of Past Connection
- Do they fit together?
Mind map showing the structure and components of the Pangaea supercontinent and its two major divisions.
The map in words
- Pangaea
- Pangaea Features
- Age: 300 million years
- Ocean: Panthalasa
- Tethys Sea divides parts
- Laurasia Northern Part
- North America
- Europe
- Asia
- Gondwanaland Southern Part
- South America
- Africa
- India
- Australia
- Antarctica
- What Happened
- Continents drifted apart
- Oceans widened
- New landforms created
- Pangaea Features
Timeline showing the three major stages of continental drift from Pangaea to present-day continental positions.
The map in words
- 300 million years ago
- Upper Carboniferous
- Pangaea completely intact
- Surrounded by Panthalasa Ocean
- 50 million years ago
- Eocene Period
- Continents actively separating
- Atlantic Ocean widening
- Tethys Sea closing
- 1 million years ago
- Early Quaternary
- Continents near present positions
- Modern geography almost formed
- Present
- Today
- Continents still moving
- 2-20 cm per year
Movement and interaction of lithospheric plates through continental drift, sea floor spreading, and plate tectonics
The map in words
- Movement and interaction of lithospheric plates through continental drift, sea floor spreading, and plate tectonics
- Wegener's Continental Drift Theory
- Pangaea and Ancient Landmasses
- Evidence for Continental Drift
- Criticism of Continental Drift
- Sea Floor Spreading
- Plate Tectonics
- Plate Boundaries
- World Lithospheric Plates
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